At this point it's just a question of time for Blizzard to completely separate what abilities do in PvE and PvP, and I, for one, can't wait. It will be much easier to control the ridiculous burst without destroying a spec in PvE. Yeah, Blizzard will have to tweak more numbers. Boohoo. They've said multiple times that tweaking numbers is easy and is one of the last things they do, so why this aversion to doing it in PvP?

The problem with the OP is he is only looking at one side of the equation... catch-up time. Which is far better in this expansion then in previous expansions.

But the other side of the issue is simply rewarding people who pvp from the beginning of a season. People who play the game mainly for pvp SHOULD have a nice gear advantage over someone who only decides to hop into PVP once the raid is on farm. Those raiders SHOULD have to spend some time fighting an uphill battle before they can gradually catch-up. If that person, mid-season, becomes dedicated to PVP, it will not take them that long to be relatively caught up.

The problem with the OP, which is the same with people who want to raid.. ´Hey, I just started right now, why can´t I have the best gear and be competitive with people who have been doing this for months´.. Answer, because it is good game design to reward people for being dedicated to an activity over time.

I've done it the same way every season. Clear raid tier, go human, play catch up, and see how high I can get. There isn't anything wrong with having to catch up, that's the point of a season. I'm not dedicated enough to pvp to reach much higher than 2200 so the gear isn't a huge limiting factor for me.